The 'notify' parameter was accidentally left out in
https://crrev.com/c/544118. The calling code in git_cl.py
already sets notify='NONE', so this will suppress all
notifications as before.

Bug: 757617
Change-Id: Ib0144d644d54b194fac0c0eb2fb51a6affa3340e
Reviewed-on: https://chromium-review.googlesource.com/634245Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Commit-Queue: Aaron Gable <agable@chromium.org>